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Joined: Mar 2003
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Paranoid android
Paranoid android
Joined: Mar 2003
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Dolby Pro Logic IIz

Taking Surround to New Heights
Introduces a new dimension in surround sound listening
Contains all the proven quality of Dolby� Pro Logic� IIx
Provides a compelling new listening experience with a more lifelike soundstage
Enables greater flexibility in expanding a 5.1 playback system to 7.1, or a 7.1 system to 9.1
Signifies an appealing new approach to surround playback in the home


Dolby Pro Logic IIz introduces a new dimension to home theater listening through the addition of front height channels, creating a 7.1 or 9.1 playback system that enhances the spaciousness of music, movies, and video games.

Through the addition of a pair of speakers above the front left and right speakers, Dolby Pro Logic IIz introduces a vertical component to the horizontal soundfield of a conventional 5.1 or 7.1 surround sound system. The enhanced spatial effects bring an overall airiness to the listening experience, a new dimension of presence and depth.

With Dolby Pro Logic IIz, rain in a movie now seems to be actually falling on the listener`s roof, concert videos bring a more intense sense of being at the performance, and orchestral works deliver more palpable depth, power, and connection.

In games, the added dimension increases the realism and immerses players more deeply than ever in the action.

Because it processes only nondirectional sounds for the height channels, Dolby Pro Logic IIz maintains the integrity of the source mix and the effects are always appropriate to the material. The added dimension complements the sound from the rear surround speakers, adding spaciousness while honoring the original intent of the content creator.

The Challenge
7.1-channel surround sound has made the home theater experience exceptionally involving and compelling. However, due to room layouts and space limitations, not every setup can accommodate the back speakers of a 7.1 system. Through our extensive research into multichannel listening, we have developed technology that delivers alternative solutions.

Dolby Pro Logic IIz solves these problems by adding front height channels, through a pair of speakers mounted above the left and right speakers in a home theater surround sound system. Dolby Pro Logic IIz:

Improves on the spatial presentation of current 7.1 surround sound setups
Provides installation flexibility for setups in which rear surround speakers are not practical
Dolby Pro Logic IIz offers a new dimension in sound, bringing a greater sense of air and presence from any content. Benefits include:

Realistic and involving surround sound from any music or movie source
Dramatic alternative listening perspective for installations that can`t accommodate back surround speakers
Functions with original stereo or multichannel sources
Requires no special encoding or separate mixing by the content producer
Simplistic speaker positioning and wiring
The added channels also add flexibility for designing a surround sound system with up to 9.1 channels. 9.1-channel AVRs offer even more options, including state-of-the-art 9.1 playback with surround and back speakers and two front height speakers.

Because Dolby Pro Logic IIz is based on proven Dolby Pro Logic IIx technology, it is as easily implemented in AVRs. The height channels become another option on the speaker setup menu. Additionally, game developers now have a powerful tool that opens up the potential for true three-dimensional audio effects. With Dolby Pro Logic IIz, developers can encode specific height information in the z-axis. Players will experience even greater immersion and realism.



Why Height
Extensive listening sessions established that adding a height dimension to a home theater brings a greater sense of realism than would the addition of surround speakers in the horizontal plane to 7.1 systems. People are also far more sensitive to directional cues from sounds occurring in front than from those behind, determining that front speaker placement is ideal.

Expanding on established Dolby Pro Logic II matrix decoding innovations, Dolby Pro Logic IIz identifies and decodes spatial cues that occur naturally in all content—stereo and 5.1 broadcast, music CDs, DVDs, 5.1 and 7.1 Blu-ray™ discs, and video games. Dolby Pro Logic IIz processes low-level, uncorrelated information—such as ambience and some amorphous effects like rain or wind—and directs it to the front height speakers.

Just as with the surround channels in existing Pro Logic IIx technology, the height extensions do not offer any new kinds of program content to drive the height channel outputs. The extensions are designed to more effectively use existing program material when height channel speaker outputs are present. The height extensions can be used to upmix a variety of sources from movies and music, but are particularly well-suited to upmix game content.






http://www.dolby.com/consumer/technology/prologic-IIz.html



G68J, HD621, ...
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Great Green Arkleseizure
Great Green Arkleseizure
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Now, how are we going to get an extra pair of DSP8000s up there without killing ourselves in the process? wink


561, DSP5500s, DSP5000C, analog sides and rears
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Pan-dimensional being
Pan-dimensional being
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Originally Posted by Frank
Now, how are we going to get an extra pair of DSP8000s up there without killing ourselves in the process? wink
sky hooks and glass nails possibly


596, 568.2mm, 562v2, DSP5Ks smileys+3dB, DSP5500.2HC smiley, DSP420'sx4,
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ATV2, vMSR, Amazon FireTV4k, MC200 1TB, HD621, 4xMS200, Oppo 203, Meridian 258, DSP3200’s, AC200,210 Streamer,218 zone controller,Wiim pro x2.
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Knows where his towel is
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I reported on this in discussions about whether Meridian top products are stale. Meridian just do not seem to be introducing the codecs to their processors even though they themselves had experimented with additional height speakers years ago. And Yamaha fitted such processing years if not decades ago. So the dedicated Dolby solution is a natural development.

Onkyo have a processor with PLIIz due out late Spring.


Asa Post
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Don't Panic!
Don't Panic!
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Originally Posted by Asa Post
I reported on this in discussions about whether Meridian top products are stale. Meridian just do not seem to be introducing the codecs to their processors even though they themselves had experimented with additional height speakers years ago. And Yamaha fitted such processing years if not decades ago. So the dedicated Dolby solution is a natural development.

Onkyo have a processor with PLIIz due out late Spring.
Steady! Dolby effectively pay Meridian's DSP team's salaries due to all of the consultancy fees that the team brings in. Don't bank on Meridian not "beating" Onkyo.

Also worth saying that the 861 code (or similar) may even form some of the basis of PLIIz...


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Robert.W
Great Green Arkleseizure
Robert.W
Great Green Arkleseizure
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Dolby come a "little" late ;-))

height channels DVD allready available from

MDG
http://www.mdg.de/frame2e.htm

and

chesky
http://www.chesky.com

The height channels are allready includet in M controller as 2+2+2 format on DVD_A

and thats NOT lossy Dolby format - its hires


Robert


800v3/218/271/8k.2/5k5s smile /5kC/DSP3200/Reviver/
TT-ELP/Graham Slee Revelation/Trinnov Altitude 32/OPPO 205
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Knows where his towel is
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Yes, you are quite right. Its just that when wondering whether to go through all the hassle of changing over to a Meridian system (lots of speakers to replace etc.) Meridian processors and players seem way behind. No doubt this is partly why you had to get PS3, Oppo, Clux etc. rather than Meridian gear?


Asa Post
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Don't Panic!
Don't Panic!
Joined: Apr 2004
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But with due respect given to the laudable efforts of MDG and Chesky, 99.9999% of the world doesn't care. A Dolby feature will get noticed though and it will synthesize height channels from all available 5.1 material. Incidentally, Yamaha have been synthesizing height channels for a decade and I had a "5.2.1" setup with my Yamaha A2.


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Hitchhiker
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Agree with VK, implementation is the key. Recently I borrowed an Onkyo N906 Receiver and used it just as a processor into my amps, compared it against my 568.2

BlueRayFilm -> Onkyo (in DTS)
BlueRayFilm -> Onkyo (in DTS-MA)

DTS-MA better

BlueRayFilm -> Onkyo (in DTS-MA)
BlueRayFilm -> Meridian 568.2 (in DTS)

To everyone who listened we all (inc my wife!) preferred the Meridian, whether this is down to the implementation of the codec or the better DACs/analogue stage in the Meridian, I don't know, but the Meridian was certainly more realistic

Mr Perceptive




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President of the Imperial Galactic Government
President of the Imperial Galactic Government
Joined: Dec 2004
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And Joe Sixpack will have all those speakers in Left/right piles on the carpet as soon as Matsui release their real world offering to the waiting masses.
"The Missus dont like wires", "So I just tidy it up here, It sounds great".

Enjoy, Chris smile


No 18 in the Hall of fame smile I have simple tastes; I am content to settle for the best:
GIK monster bass panels, rear wall. QNAP TVS 471i3. Roon into DSP5200SE via 210/ 218 zone... Explorer 2. Bluesound Pulse 2, Mini & Flex. 596v1, 518, Foxsat HD, Sony BDP, Pioneer 5090, 2 Chromecast's for LRB videos. MS200 to F80 for a Roon zone

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Senior Shouting Officer
Senior Shouting Officer
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I spoke with M about height speakers years ago and they said it was a possibility and recommended I run wires for them, and I am glad I did. At the time I figured Id do DSP33s.


Best regards,
Jerry
Main System: 861v6, DSP8000s in corners, DSP7000s Center and Sides, 1-9 humans.
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Hitchhiker
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I agree with Mr Perceptive and his findings. I just disconnected my 568MM and connected a yamaha rxv 661 just to hear how the advanced audio codecs would sound via HDMI. I only used the processor of the yamaha rxv 661 and my eathquake cine nova 5 channel.

I dont have all of the auiophile termonology down yet, but could hear the difference of the HDMI versus the SPDIF. I formerly had the Yamaha RXV1 flagship receiver from 2001, which had the front presence speaker option. As a matter of fact the front presence speakers are still mounted in my ceiling. So I am happy with the Dolby PLIIZ with the hope I will be able to use those B&W speakers in my ceiling once again.

To make a long story short, I reconnected my Meridian 568mm and immediately I could tell that the Meridian was superior in quality, that was no surprise. The difference I heard thru the HDMI connection was a differnce but not a better difference as far quality of sound. I heard the seperation, the various ambient nuances of the HDMI but it was not a greater quality. I realize that the rxv 661 was a lower end of the yamaha, but I had the high end rxv1 and left it for the Meridian 568MM back in 2005.

Hooray for PLIIz and for front presence channels!

Samuel



861v8, HD621, LG oled, Mac Mini M4, Gustard U18, Apple 4K TV, B&W 801's Matrix 3, B&W HTM1 & HTM1, (4) B&W CCM80's (ceiling surrounds), (2) Velodyne HGS18 & Keces 3600, Furman Elite 15, (2) CineNova EarthQuake 5 channel
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